| 发明名称 |
INFORMATION RECORD/REPRODUCTION APPARATUS AND RECORD/REPRODUCTION METHOD |
| 摘要 |
An information record/reproduction apparatus includes logical volumes that can be used as a variable-length record/reproduction area and a physical volume that has been divided into a plurality of fixed-length areas and is not subjected to record or reproduction. Allocation to the logical volume is made by combining the divided fixed-length physical volumes by a management unit, and the size of the information storage area can be set depending upon, for example, a category of information to be recorded. If the amount of information of high priority exceeds a size of a predetermined logical volume corresponding to the information while no unused physical volume is available, then the management unit detaches part of a logical volume in which information of low priority has been recorded, allocates the detached part to the logical volume corresponding to the information, and thus records the exceeding amount of information. |
| 申请公布号 |
US2016196066(A1) |
申请公布日期 |
2016.07.07 |
| 申请号 |
US201314655802 |
申请日期 |
2013.12.25 |
| 申请人 |
NEC Corporation ;NEC TOSHIBA Space Systems, Ltd. ;JAPAN AEROSPACE EXPLORATION AGENCY ;TOKYO METROPOLITAN UNIVERSITY |
发明人 |
KAWAKAMI Satoko;HIHARA Hiroki;MIZUSHIMA Kazuyo;TAKAHASHI Tadayuki;KOKUBUN Motohide;NOMACHI Masaharu;OZAKI Masanobu;KAWAI Nobuyuki;ISHISAKI Yoshitaka;TERADA Yukikatsu |
| 分类号 |
G06F3/06 |
主分类号 |
G06F3/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An information record/reproduction apparatus including logical volumes that can be used as a variable-length record/reproduction area and a physical volume that has been divided into a plurality of fixed-length areas and is not subjected to record or reproduction, storage areas being managed by management means provided within or outside of the apparatus, wherein:
allocation to the logical volume is made by combining the divided fixed-length physical volumes by the management means, and the size of the information storage area can be set depending upon a category of information to be recorded, and the category is defined by a priority, and if the amount of information of a high priority that is to be recorded exceeds a size of a predetermined logical volume corresponding to the information while no unused physical volume is available, then the management means detaches part of the logical volume in which information of a low priority has been recorded, allocates the detached part to the logical volume corresponding to the information, and thus records the exceeding amount of information. |
| 地址 |
Minato-ku, Tokyo JP |
